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RS485通信源码

于 2022-01-31 发布 文件大小:1.17 MB
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 /******************************************************************************* *  标题:                  RS485串口通信试验(接受与发送)                         * *    * *  1.通过本例程了解串口的基本原理及使用 ,理解并掌握对串口进行初始化    * * * *  2.请使用串口调试助手(Baud 4800、数据位8、停止位1、效验位无)做为上位机(发送)数据和(接受)数据, *    请在字符串输入框中输入字符和数字(HEX),按发送按钮。观看接受窗显示情况.也可以用自动循环发送。 * *  3.试验RS485需要用RS232转485的转换头。开板A对485转换头A  B对应485转换头B.接法大家可以参考原理图。 *          注意:18B20 请卸下,否则会影响RS485                                                                            * *

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